Autonomous permanent automatic monitoring system with robot-tacheometers
Foppe, Karl, Wolf Barth and Sebastian Preis
At the geodetic laboratory of the Technical University of Munich the permanent automatic monitoring of historical architecture has a long tradition. In the year 2003 an automatic system for permanent geodetic observations called MoSTUM (Monitoring System TUM) was developed especially for the monitoring of the behaviour of buildings. MoSTUM bases on the application of robot-tacheometers. Furthermore additional sensors for detection of exterior influences like meteorological values are supported. An optional mobile data transfer solution by GSM allows the autonomous integration of MoSTUM at arbitrary sites. It offers the possibility to check the state of the object from the office or even wireless from any other place in the world. In critical cases MoSTUM can act as an alarm system by sending short messages to mobile phones of the responsible engineers. The standard system consists of a robot-tacheometer and retro-prisms for signalization of the object points. For the installation the choice of the position of the object points is free. Moreover MoSTUM allows changing the configuration of the object points during the period of observations easily. If there is no direct sightline between robot-tacheometer and the retro prisms at important object points, an indirect line of sight can be realized by the use of plane mirrors. The collected data of the object geometry and of the exterior influences like acting forces enable an interdisciplinary interpretation in post processing. In this paper the technical design of MoSTUM and the experiences of the first three years of the practical use in Bavarian churches are presented.
Event: XXIII International FIG Congress : Shaping the change
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